/* ===================================
   CDS BORILAČKI KLUB - MINIMALIST DESIGN
   Boje: Crna (#1a1a1a), Crvena (#c41e3a), Bela (#ffffff)
   =================================== */

:root {
    --primary-black: #1a1a1a;
    --primary-red: #c41e3a;
    --primary-white: #ffffff;
    --light-gray: #f5f5f5;
    --dark-gray: #333333;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 8px 24px rgba(196, 30, 58, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--primary-white);
    overflow-x: hidden;
    --discipline-mma-pro: #1a1a1a;
    --discipline-mma-pocetnici: #a9a9a9;
    --discipline-nogi-pocetnici: #90EE90;
    --discipline-nogi-pro: #228B22;
    --discipline-bjj-gi: #8B4513;
    --discipline-kickbox: #c41e3a;
}

/* ===================================
   TYPOGRAPHY
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    color: var(--primary-black);
}

h2 {
    font-size: 2.5rem;
    color: var(--primary-black);
}

h3 {
    font-size: 1.8rem;
    color: var(--primary-black);
}

p {
    font-size: 1rem;
    color: #555;
    line-height: 1.8;
    margin-bottom: 1rem;
}

a {
    color: var(--primary-red);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-black);
}

/* ===================================
   NAVIGATION
   =================================== */

nav {
    background-color: var(--primary-black);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--box-shadow);
    border-bottom: 3px solid var(--primary-red);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 45px;
    width: 45px;
    border-radius: 50%;
    background-color: var(--primary-white);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.1);
}

.logo-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.logo-text {
    color: var(--primary-white);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.2;
}

.logo-text .red {
    color: var(--primary-red);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}

nav a {
    color: var(--primary-white);
    font-size: 0.9rem;
    font-weight: 600;
    position: relative;
    transition: var(--transition);
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-red);
    transition: var(--transition);
}

nav a:hover {
    color: var(--primary-red);
}

nav a:hover::after {
    width: 100%;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    background: linear-gradient(135deg, var(--primary-black) 0%, #2d2d2d 100%);
    color: var(--primary-white);
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(196, 30, 58, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-logo {
    width: 150px;
    height: 150px;
    margin: 0 auto 2rem;
    background-color: var(--primary-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(196, 30, 58, 0.2);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.club-name {
    font-size: 3.2rem;
    color: var(--primary-red);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero h1 {
    font-size: 1.5rem;
    color: var(--primary-white);
    margin-bottom: 1.5rem;
    font-weight: 300;
    letter-spacing: 2px;
}

.hero p {
    font-size: 1.1rem;
    color: #ddd;
    margin-bottom: 0.5rem;
}

.hero-tagline {
    font-size: 0.95rem;
    color: var(--primary-red);
    font-weight: 600;
    margin-top: 1rem;
}

/* ===================================
   CONTAINER & SECTIONS
   =================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 2rem;
}

section:nth-child(odd) {
    background-color: var(--light-gray);
}

section:nth-child(even) {
    background-color: var(--primary-white);
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: var(--primary-black);
    position: relative;
    padding-bottom: 1.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background-color: var(--primary-red);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* ===================================
   CARDS
   =================================== */

.grid {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background-color: var(--primary-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-red);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.card-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, var(--light-gray) 0%, #e0e0e0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(196, 30, 58, 0.1);
    opacity: 0;
    transition: var(--transition);
}

.card:hover .card-image::after {
    opacity: 1;
}

.card-content {
    padding: 2rem;
}

.card-title {
    font-size: 1.3rem;
    color: var(--primary-black);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.card-subtitle {
    color: var(--primary-red);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.card-text {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

.card-badge {
    display: inline-block;
    background-color: var(--primary-red);
    color: var(--primary-white);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-red);
    color: var(--primary-white);
}

.btn-primary:hover {
    background-color: var(--primary-black);
    box-shadow: var(--box-shadow-hover);
}

.btn-secondary {
    background-color: var(--primary-black);
    color: var(--primary-white);
}

.btn-secondary:hover {
    background-color: var(--primary-red);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-red);
    border: 2px solid var(--primary-red);
}

.btn-outline:hover {
    background-color: var(--primary-red);
    color: var(--primary-white);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* ===================================
   FEATURES / DISCIPLINES
   =================================== */

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: var(--primary-white);
    border-radius: var(--border-radius);
    border-top: 4px solid var(--primary-red);
    transition: var(--transition);
}

.feature:hover {
    transform: scale(1.05);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.3rem;
    color: var(--primary-black);
    margin-bottom: 0.5rem;
}

.feature-text {
    color: #666;
    font-size: 0.95rem;
}

/* ===================================
   TRAINER & FIGHTER CARDS
   =================================== */

.trainer-card,
.fighter-card {
    background: var(--primary-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.trainer-card:hover,
.fighter-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-hover);
}

.treneri-grid,
.borci-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.trainer-image,
.fighter-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: linear-gradient(135deg, var(--light-gray) 0%, #e0e0e0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 3px solid var(--primary-red);
    position: relative;
    border-top: 4px solid var(--primary-red);
    border-radius: var(--border-radius);
}

.trainer-image img,
.fighter-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Primena filtera za ujednačavanje kontrasta i osvetljenja */
    filter: brightness(0.95) contrast(1.05) saturate(0.9);
    transition: var(--transition);
}

/* Efekat prelaza (hover) koji koristi primarnu crvenu boju */
.borci-grid .fighter-image::after,
.treneri-grid .trainer-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(196, 30, 58, 0.1);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.borci-grid .fighter-card:hover .fighter-image::after,
.treneri-grid .trainer-card:hover .trainer-image::after {
    opacity: 1;
}

.trainer-info,
.fighter-info {
    padding: 1.8rem;
}

.trainer-info h3,
.fighter-name {
    color: var(--primary-black);
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.trainer-belt {
    color: var(--primary-red);
    font-weight: 600;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
    display: inline-block;
    background-color: rgba(196, 30, 58, 0.1);
    border-radius: 4px;
}

.trainer-bio,
.fighter-achievements {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

.trainer-disciplines {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.trainer-discipline {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fighter-category {
    display: inline-block;
    background-color: var(--primary-red);
    color: white;
    padding: 0.4rem 0.9rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

/* ===================================
   LOCATIONS
   =================================== */

.location-card {
    background: var(--primary-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    border-top: 4px solid var(--primary-red);
    transition: var(--transition);
}

.location-card:hover {
    box-shadow: var(--box-shadow-hover);
}

.lokacije-grid {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.location-block {
    background: var(--primary-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.location-block:hover {
    box-shadow: var(--box-shadow-hover);
}

.location-container {
    display: grid;
    grid-template-columns: 1fr 2fr 1.5fr 1.5fr;
    gap: 0;
    border-bottom: 1px solid #e0e0e0;
}

.location-col {
    padding: 1.5rem;
}

.location-col:first-child {
    background-color: rgba(196, 30, 58, 0.05);
}

.location-col:first-child h3 {
    color: var(--primary-black);
    margin: 0;
    font-size: 1.2rem;
}

.location-info-item {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #333;
}

.location-info-item:last-child {
    margin-bottom: 0;
}

.info-label {
    color: var(--primary-red);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-right: 0.5rem;
}

.programs-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.program-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.membership-badge {
    display: inline-block;
    padding: 0.8rem 1rem;
    background-color: var(--primary-red);
    color: white;
    border-radius: 4px;
    font-weight: 700;
    text-align: center;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.schedule-section {
    padding: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

.schedule-section h4 {
    color: var(--primary-black);
    margin: 0 0 1rem 0;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.schedule-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0;
    font-size: 0.85rem;
}

.schedule-table th,
.schedule-table td {
    border: 1px solid #ddd;
    padding: 0.8rem;
    text-align: center;
}

.schedule-table th {
    background: linear-gradient(135deg, var(--primary-black) 0%, #2d2d2d 100%);
    color: white;
    font-weight: 700;
}

.schedule-table tr:nth-child(even) {
    background-color: var(--light-gray);
}

.schedule-table .placeholder {
    color: #999;
    font-style: italic;
}

/* ===================================
   FAQ
   =================================== */

.qa-grid {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.qa-item {
    background: var(--primary-white);
    border-left: 4px solid var(--primary-red);
    border-radius: var(--border-radius);
    padding: 1.8rem;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.qa-item:hover {
    box-shadow: var(--box-shadow-hover);
}

.qa-question {
    cursor: pointer;
    font-weight: 700;
    color: var(--primary-black);
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: var(--transition);
}

.qa-question:hover {
    color: var(--primary-red);
}

.qa-icon {
    color: var(--primary-red);
    font-weight: 900;
    font-size: 1.5rem;
}

.qa-answer {
    margin-top: 1rem;
    color: #666;
    display: none;
    line-height: 1.8;
    animation: slideDown 0.3s ease-out;
}

.qa-answer.active {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   FOOTER
   =================================== */

footer {
    background: linear-gradient(135deg, var(--primary-black) 0%, #2d2d2d 100%);
    color: var(--primary-white);
    text-align: center;
    padding: 3rem 2rem 1.5rem;
    border-top: 3px solid var(--primary-red);
}

footer p {
    color: #ddd;
    margin-bottom: 0.5rem;
}

.footer-links {
    margin-top: 1.5rem;
}

.footer-links a {
    color: var(--primary-red);
    margin: 0 1.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-white);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    h3 {
        font-size: 1.3rem;
    }

    .club-name {
        font-size: 2rem;
        letter-spacing: 2px;
    }

    .hero h1 {
        font-size: 1.1rem;
    }

    .hero {
        padding: 4rem 1.5rem;
    }

    section {
        padding: 3rem 1.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    nav ul {
        gap: 1.5rem;
    }

    nav a {
        font-size: 0.8rem;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .treneri-grid,
    .borci-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .location-container {
        grid-template-columns: 1fr 1fr;
    }

    .btn {
        padding: 0.9rem 2rem;
        font-size: 0.85rem;
    }

    .logo-text {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    .club-name {
        font-size: 1.5rem;
        letter-spacing: 1px;
    }

    .hero {
        padding: 3rem 1rem;
    }

    .nav-container {
        padding: 0 1rem;
    }

    nav ul {
        gap: 1rem;
    }

    section {
        padding: 2.5rem 1rem;
    }

    .card-content {
        padding: 1.5rem;
    }

    .location-content {
        padding: 1.5rem;
    }

    .schedule-table {
        font-size: 0.75rem;
    }

    .schedule-table th,
    .schedule-table td {
        padding: 0.6rem 0.4rem;
    }

    .treneri-grid,
    .borci-grid {
        grid-template-columns: 1fr;
    }

    .location-container {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.text-center {
    text-align: center;
}

.text-red {
    color: var(--primary-red);
}

.text-white {
    color: var(--primary-white);
}

.bg-red {
    background-color: var(--primary-red);
}

.bg-black {
    background-color: var(--primary-black);
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }

.border-red {
    border-color: var(--primary-red);
}

.opacity-50 {
    opacity: 0.5;
}

.hidden {
    display: none;
}

/* ===================================
   ANIMATIONS
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}